john McVicar

Thanks for replying
I have attached photos. I will need about50-60gpm up on the roof to run 7 or so sprinklers.2 at 15-20 gpm - Some only at 3gpm. As you can see the female crimp swivel connector is reduced down to 1” for a few inches but right at the pump discharge point.  Firehosedirect  said loss is negligible in their hose.
I will manifold to 3/4” outlets to feed sprinklers after about 40’ of 1-1/2” copper up to the roof  and two 90’s. I’m struggling with web friction/ head loss calcs  but think I’m in the ballpark.
Any help /direction would be appreciated

Thanks       John

I have an 1-1/2” discharge on a high pressure water pump(100psi, 230’ total head)  and attempting to pump up to rooftop(30’) from a pool. I purchased a 5’ long 1-1/2” discharge hose to hookup to 1-1/2” copper to roof. I noticed that the hose end fittings are reduced to 1” the manufacturer says this is minimal friction loss. Seems like squeezing down everything at the worst point. Any info would be appreciated
  Thanks
    John M